| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-36 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-16 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-38 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate |
2012-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2019-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-102029504-B1 |
| titleOfInvention |
Method for purifying wastewater from reprocessing of crude aromatic nitro compounds |
| abstract |
The present invention provides a process for purifying crude aromatic nitro compounds derived from nitration of aromatic compounds, the washing step (a): (a) contacting the crude aromatic nitro compound (N-in) with an aqueous phase (W-in) and then separating the phases to obtain an organic phase (N-res) and an aqueous phase (W-res). A single or multiple run of a method, wherein at least one demulsifier (D) is present in at least one washing step (a). |
| priorityDate |
2011-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |